package com.jojo.jojomall.product.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @Author: 魔法少女小夫
 * @Data: 2022/5/16
 * @Version:
 * @Description: 管理所有缓存设置
 */
@EnableConfigurationProperties(CacheProperties.class)
@Configuration
@EnableCaching
public class MyCacheConfig  {
    @Autowired
    CacheProperties cacheProperties;

    @Bean// 注入bean
    RedisCacheConfiguration  redisCacheConfiguration(CacheProperties cacheProperties){
//        注意这里的config需要陆续赋值而不是一个有getset方法的普通对象；
//        得到默认配置
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
        config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
//        更改缓存保存的value值的序列化方式；
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();

        if (redisProperties.getTimeToLive()!=null){
            config= config.entryTtl(redisProperties.getTimeToLive());
        }
        if (redisProperties.getKeyPrefix()!=null){
            config= config.prefixKeysWith(redisProperties.getKeyPrefix());
        }
        if (!redisProperties.isCacheNullValues()){
            config= config.disableCachingNullValues();
        }
        if (!redisProperties.isUseKeyPrefix()){
            config= config.disableKeyPrefix();
        }




//        将做了修改的配置返回过去，覆盖原来的配置
        return config;
    }
}
